Co-precipitation synthesis of Nd:YAG powders with high uniformity and regular crystal size

Abstract

Nd 3x Y 3¹3x Al 5 O 12 (Nd:YAG) powders with high uniformity were synthesized by reverse-titration co-precipitation method. The precipitation formation process and dispersion mechanism of Nd:YAG precursor in coprecipitation process were analyzed, and the influence of the preparation technology on the dispersion of powders was explored by adjusting the concentration of precipitator, alcohol-water solvent and ratio of composite dispersant. In addition, through the analysis of the precursor calcination process, combined with SEM and particle size analysis, it is shown that, under optimum processing conditions, the powders have excellent particle uniformity, narrow particle size distribution and appropriate crystal size when calcined at 1150°C for 2 h.

Mechanochemical synthesis of nanostructured and composite oxide ceramics: From mechanisms to tailored properties

“…[4][5][6] Over the past few decades, extensive research has been conducted on methods for preparing oxide ceramic powders, including both traditional and mechanochemical techniques. Traditional approaches such as solid-phase methods, such as high-temperature solid-phase synthesis 7,8 and molten salt methods, [9][10][11] and liquid-phase methods such as co-precipitation, [12][13][14] sol-gel, [15][16][17][18] and hydrothermal methods, 19,20 have been widely studied. However, these traditional methods often require organic solvents or high-temperature conditions, leading to low reaction efficiency and environmental concerns.…”